Code Mosh React 18 Beginners Fco May 2026

return <p>fact</p>;

✅ React 18 automatically batches multiple setLikes calls. function MovieList() const movies = [ id: 1, title: 'The Matrix' , id: 2, title: 'Gladiator' ]; return ( <ul> movies.map(movie => ( <li key=movie.id>movie.title</li> )) </ul> ); code mosh react 18 beginners fco

No () => unless passing arguments. import useState, useEffect from 'react'; function MovieFacts() const [fact, setFact] = useState(''); title: 'The Matrix'

⚠️ Always use a unique key . function DeleteButton( onDelete ) return <button onClick=onDelete>Delete</button>; title: 'Gladiator' ]

return ( <button onClick=() => setLikes(likes + 1)> 👍 likes </button> );

If two components need same data → move state to closest common parent.